Come up with a list of computable metrics related to modularity that we would like to improve and improve them. 
Metrics could include:

 - percent of declarations that are of private visibility
 - percent of declarations that are NEEDS_REPLACEMENT or USE_REPLACEMENT
 - graph modularity (i.e. are most of our dependencies within modules (preferrable) or cross-module)
 - unused include count 
 - transitive dependency count